In the ISO 6272-1 standard published by the International Organization for Standardization (ISO), a test is used to evaluate the resistance of a dry paint, varnish or related product film to cracking or peeling on a substrate when subjected to deformation with a 20 mm diameter spherical recess that is dropped under standard conditions. test method is explained. Although impact and impact resistance expressions are used in the title and content of the standard, an important feature of the apparatus used in the tests is that it produces rapid deformation instead of a real impact.
-testleri-bolum-1-dusen-agirlik-testi-genis-alan-girintisi.jpg "ISO 6272-1 Paints and Varnishes - Rapid Deformation (Impact Resistance) Tests - Part 1: Drop Weight Test, Large Area Indentation")
This test method described is implemented as either a pass/fail test, and the test is performed from a drop height and with a given mass to determine conformity to a particular specification. Or, this method is used as a classification test to gradually increase the drop height or mass to determine the minimum mass or drop height at which the pavement cracks or peels from its substrate.
In fact, the ISO 6272 standard consists of two parts:
In short, impact testing of coated steel plates is used to evaluate the ability of a specimen to resist cracking or peeling when subjected to rapid deformation. This test is also called impact strength. This test method evaluates the rapid deformation of a specimen under the impact of a hammer subjected to free fall. This method is for evaluating the coating's resistance to cracking or falling. It demonstrates the adhesion strength of the coating without cracking or falling. Impact testing is performed to observe the mechanics a specimen exhibits when subjected to an impact that causes it to deform, fracture, or completely break. This collision between the weight and the specimen usually results in the specimen's destruction, but the fracture mechanics of the material are determined through the energy transfer between the two.
Our organization, among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, with its trained and expert staff and advanced technological equipment, the falling weight among the rapid deformation (impact resistance) tests for paints and varnishes within the scope of ISO 6272-1 standard. It also provides test (large area indentation) services.
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